MonitorDimension.java

package com.compomics.util.gui;
import org.apache.log4j.Logger;

import javax.swing.*;
import java.awt.*;

/**
 * This class makes it possible to set the dimmensions of a JFrame of JPanel
 * to a certain percentage of the screen size.
 */
public class MonitorDimension {

    // Class specific log4j logger for MonitorDimension instances.
    Logger logger = Logger.getLogger(MonitorDimension.class);

    /**
     * This dimension is used by all the methods.
     */
    private static Dimension lDimension;
    private static double lWidth;
    private static double lHeight;

    /**
     * This method returns a Dimension with a percentual width and height in relation to the JFrame.
     *
     * @param frame         Source dimension
     * @param aPercentage   Percentual width and height of the returning dimension.
     * @return              A Dimension instance with a percentual Dimension in relation to the JFrame.
     */
    public static Dimension getPercentualScreenDimension(JFrame frame, double aPercentage){
        clearDimension();
        Toolkit tlkt = frame.getToolkit();
        setDimension(tlkt, aPercentage);
        return lDimension;
    }

    /**
     * This method returns a Dimension with a percentual width and height in realtion to the JPanel.
     *
     * @param jpan          Source Dimension
     * @param aPercentage   Percentual width and height of the returning dimension.
     * @return              A Dimension instance with a percentual Dimension in relation to the JPanel.
     */
    public static Dimension getPercentualScreenDimension(JPanel jpan, double aPercentage){
        clearDimension();
        Toolkit tlkt = jpan.getToolkit();
        setDimension(tlkt, aPercentage);
        return lDimension;
    }

    /**
     * Set the size to a given percentage.
     *
     * @param tlkt reference to the toolkit
     * @param aPercentage the percentage screen size
     */
    private static void setDimension(Toolkit tlkt, double aPercentage){
        lWidth = tlkt.getScreenSize().getWidth() * aPercentage;
        lHeight = tlkt.getScreenSize().getHeight() * aPercentage;
        lDimension.setSize(lWidth, lHeight);
    }

    /**
     * Clears the dimmension settings.
     */
    private static void clearDimension(){
        lWidth = 0;
        lHeight = 0;
        lDimension.setSize(0, 0);
    }
}